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Oksana_A [137]
3 years ago
7

Work the following time, distance, and rate problems. Answer should be to the nearest hundredth.

Mathematics
2 answers:
n200080 [17]3 years ago
8 0
The answer is 9.3, divide the distance between town A&B by the speed of the automobile. 420/45= 9.3 hours. 
KATRIN_1 [288]3 years ago
6 0

Answer:

Step-by-step explanation:

Alright, lets get started.

The time, distance, speed formula is :

time=\frac{distance}{speed}

distance is given as 420 miles.

speed is given as 45 mph.

Plugging the value of distance and speed in above formula, we can find the time.

time=\frac{420}{45}

time=9.33

So, the time to travel between town A to town B will be 9.3 hours. :  Answer

Hope it will help :)

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Which pair of values could NOT be the roots of a quadratic polynomial?
DENIUS [597]

Answer:

Part c

Step-by-step explanation:

In quadratic equations of real coefficients, the complex roots always occur in conjugate bases. It means, if, 2 + 3i is one of the roots and then the second root must be 2 - 3i.

7 0
3 years ago
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The first discount on a camera was 18%. The second discount was 20%. After these two discounts the price was $328. What was the
Artyom0805 [142]

Answer:

$500

Step-by-step explanation:

We can find the original price of the camera through a proportion. A proportion is an equation where two ratios or fractions are equal. The ratios or fractions compare like quantities.

<u>Second Discount</u>

20% off means we paid 80%. We know we paid $328 of some price.

\frac{80}{100} =\frac{328}{y}

I can now cross-multiply by multiplying numerator and denominator from each ratio.

80y=100(328)\\80y=32800

I now solve for y by dividing by 80.

\frac{80y}{80} =\frac{32800}{80} \\y= $410

The price after the first discount was $410.

<u>First Discount</u>

We will repeat the steps above with $410. 18% off means we paid 82%.

\frac{82}{100} =\frac{410}{y}

I can now cross-multiply by multiplying numerator and denominator from each ratio.

82y=100(410)\\82y=41000

I now solve for y by dividing by 82.

\frac{82y}{82} =\frac{41000}{82} \\y= $500

The original price was $500.


5 0
3 years ago
Polygons ABCD &amp; EFGH are similar. What is the perimeter of EFGH when AD = 12, BC = 8, FE = 15, FG = 10, and GH = 5?
wolverine [178]
Perimeter of EFGH = 50
4 0
3 years ago
Please solve quickly!! 10=f/5
Dahasolnce [82]

Answer:

F=50

Step-by-step explanation:

F=5*10=50

6 0
2 years ago
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Find the distance between -4.3 and 0.8 on a number line as a decimal
evablogger [386]

Answer:

5.1

Step-by-step explanation:

Add 4.3 to 0.8

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3 years ago
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